SEAN TYLER O'SULLIVAN DO
NPI 1285073205
Family Medicine in Scarborough, ME
About Sean Tyler O'sullivan Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN TYLER O'SULLIVAN DO (NPI 1285073205) is an individual family medicine provider in Scarborough, Maine, licensed in Maine (DO2641) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Northern Light Health, and is a graduate of University Of New England, College Of Osteo Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sean Tyler O'sullivan Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Sean O'sullivan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- 206 clinicians in this Medicare group
Portland, ME 04101
- Reassigned Medicare billing, Maine enrollment
- 98 clinicians in this Medicare group
Portland, ME 04104
- Reassigned Medicare billing, Maine enrollment
- 153 clinicians in this Medicare group
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- 920 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 12
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light Health
Acute Care Hospitals · Portland, MEMaine Medical Center
Acute Care Hospitals · Portland, MECentral Maine Medical Center
Acute Care Hospitals · Lewiston, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04074 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SCARBOROUGH, ME 04074
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sean O'sullivan's NPI number?
The NPI number for Sean O'sullivan is 1285073205. It was assigned to this individual provider in the NPPES registry on June 24, 2013.
Where is Sean O'sullivan located?
Sean O'sullivan practices at 153 Us Route 1, Scarborough, ME 04074. The listed phone number is (207) 799-8596.
What is Sean O'sullivan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Sean O'sullivan enrolled in Medicare?
Yes. Sean O'sullivan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Sean O'sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean O'sullivan reassigns Medicare benefits to 4 organizations: Maine Medical Partners (Scarborough, ME), Mainehealth (Portland, ME), Martin's Point Health Care, Inc. (Portland, ME) and Central Maine Medical Center (Lewiston, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean O'sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sean O'sullivan accept?
Health plans from Anthem Blue Cross and Blue Shield list Sean O'sullivan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Sean O'sullivan affiliated with any hospitals?
According to CMS data, Sean O'sullivan is affiliated with Northern Light Health, Maine Medical Center and Central Maine Medical Center.
When was this NPI record last updated?
The NPPES record for Sean O'sullivan was last updated on September 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.